Drying apparatus



March 12, 1935. w, 1 MARTIN l 1,994,039

' DRYING APPARATUS Filed July l, 1952 wana-91.1. 3;.. Maf cin I l N v i.N ro Q zem @www Patented Mar. 12, 1935 UNITED# STATES PATENT vOFFICEApplication July 1,1932, serial No. 620,353

13 Claims.

My invention relates to drying apparatus, and has particular referenceto apparatus forusein drying hair or the hands, or the like, and aprincipal object of my invention is to provide a newy on the line 1-1of'Figure 3, and showing onev characteristic operation of the apparatus,

Figure 2 is a similar horizontal sectional view of said embodimentshowing another characteristic operation of said apparatus,

Figure 3 is a side elevational View of said embodiment, portions of thepedestal being broken away, while Figure 4 is a transverse verticalsectional view, taken on the line 4 4 of Figure 2.

l The embodiment of my invention herein shown comprises a dome-shapedhousing, or casing 5, having a beaded front edge 6, tapering toward therear, and terminating in a rear wall 7 having an opening 8 surrounded by=a ange 9, and also having an opening 10 surrounded by a flange Disposedwithin the housing, or casing 5 is an insert comprising a dome-shapedshell 12, at its rear 4end provided with a tubular extension 13extending through the flanged opening-10, extending in substantiallyparallel spaced relation with respect to the housing 5 and terminatingshort of the forward extrem-ity of said housing, denning a passage 14,and at its forward end supports v the forward portion, as by an integralconnection, of a dome-shaped hood member .15, forming a chamber 16,extending in spaced relation with respect to the shell 12 and deningtherewith a passage 17, communication .being afforded between thechamber 16 and passage 17 by a plurality -of annularly arrangedapertures 18 covered by a strip of screen 19 secured by rivets 20 to thehood member 15. A web 20 of screen is disposed to span the space betweenthe forward portions of the shell 12 and housing 5, being secured inposition by screws 21. Disposed at the rear of the housing 5is acircular block 22 of material, provided with an opening 23 surrounded bya boss 24, and with an open- .ing 25 surrounded by a boss 26, the boss24 extending into the ange 9 surrounding the opening 8, and the boss 26extending into the tubular extension 13, the block being scured inposition by a plurality of pins, only one of which is shown, as at 27.Cooperating with the block 22 y is a cup-shaped supporting member 28into which the block 22 is rotatably seated, and rotatably se- 5 curedby a rivet 29, limited in rotation by a pin and slot arrangement 30, thesupporting member 28 having an opening 31 surrounded by a boss 32 and anopening 33 surrounded by a boss 34, the openings 31 and 33 being solocated as to come 10 into registry with the openings 23 and 25 of theblock 22, a washer 35 being interposed between the block 22,andsupporting member 28 and secured to the latter by any suitable means,and provided with openings registering withthe openl5 ings 31 and 33.'I'he supporting member 28 is also provided with oppositely disposedradially extending studs 36 accommodated in the end portions offurcatons'forming part of a supporting pedestal 37. 20

Secured to the rear oi the supporting member 28 is a circulating unitcomprising a fan casing 38 enclosing a centrifugal fan 39 of the turbinetype mounted upon the armature shaft 40 of a motor 41 secured to thecasing 38 by bolts 42, the axis 25 of rotation of the fan 39 beingarranged substantially at right angles to -the axis of the housing 5,and communicating with the'v eye of the fan 39 and forming part oi.' thefan casing 38 is -a curved conduit pipe 43 the open end of which 30seats about and is secured to the boss 32 surrounding the opening 31 inthe supporting member 28, and also formed as a part of the fan casy ing38 is a conduit 44 arranged in line with the circumferential peripheryof the fan 39, and hav- 35 ing its outer end fitted over and secured tothe boss 34 and communicating with the opening 33 in the supportingmember 28. Disposed within the conduit 44 is a heating coil 45 insulatedtherefrom, and secured in position by suitable secur- 40 ing means asindicated at 46. VWhen the motor 41 and Ian 39 are energized andassuming the apparatus to be in the position shown in Figure 1, pressureisreduced in the passage 14 causing movement of air through the 45opening 8 into the conduit 43 and thence to the l fan 39 whichdischarges such air outwardly through the conduit 44 and into thepassage 17,

passing thence into the chamber 16 through the openings 18, over thehead of the subject treated, and Vcoming into the zone' of low pressureat the open endo! the passage 14 a material part of such air isentrained, enters such passage and is recirculated, as clearly shown bythe arrows in Figure 1.

To reverse circulation of air through the apparatus the casing may begrasped by the operator and rotated as permitted by the rotatableconnection of the block 22 with the supporting member 28, to bring theopenings 8 and 23 into alinement with the conduit 44, and to bring theopenings 13 and 25 into alinement with the conduit 43, wherefore airwill be circulated as indicated bythe arrows in Figure 2, air enteringthe chamber 16, passing through the apertures 18 into the passage 1'1thence through the tubular extension 13 and conduit 43 to the Ian 39being then discharged into the extension 44, heated, thence dischargedinto the passage 14 and outwardly, and by reason ofthe air of lowpressure in the chamber 16 a material portion of this same air againenters the chamber 16 and is recirculated.

Thus it is apparent that the directionof recirculation of the airpassing through the apparatus may be reversed at will by a simpleoperation, and more rapidv and eiiicient operation etfected, with amaterial gain in heat energy conservation.

It will be apparent that the embodiment herein described accomplishesthe principal object of the invention, and is adapted for uses andpurposes not herein particularly referred to, and.

may be variously changed and modiiled without departing from the spiritoi my invention, and accordingly it will be understood that suchembodiment is illustrative only and my invention is not limited thereto.

I claim:

1. Apparatus, as ofthe type described, for subjecting a person to theaction of a stream oi! gaseous-like iiuid, comprising: an open-fronthousing having a plurality of oriilce areas, and means within saidhousing defining a plurality of cooperating passages communicating withsaid oriiice areas; a circulating unit cooperating with said housing,and having a suction inlet and a discharge outlet; means for supportingsaid circulating unit: said housing being shiftable with respect to saidcirculating unit to effect selective communication of said suction inletand said discharge outlet of said circulating unit with the cooperatingpassages of said housing; said housalso comprising means whereby gaseousiiuid discharged from one passage is entrained in the stream of gaseousIluidentering the other passage and thus recirculated. l 2. Apparatus,as oi' the type described, for subjecting a person to the action of astream of gaseous-like iluid, comprising: an open-front housing having aplurality of orifice areas, one embracing another, and means within saidhousing deiinlng a plurality of Acooperating passages communicating withsaid orice areas; a circulating unit cooperating with said housing, andhaving a suction inlet and a discharge outlet; said housing beingswiveled with respect to said circulating unit to eiect selectivecommunication of said suction inlet and said discharge outlet ot saidcirculating unit with thecooperating passages of said housing, wherebythe plurality of orifice areas alternately may serve for inlet anddischarge of the gaseous fluid circulated; said housing also comprisingmeans whereby gaseous fluid discharged from one passage is entrained inthe stream .of gaseous iiuid entering the other passage and thusrecirculated.

3. Apparatus, as of the type described, for subjecting a person to theaction of a stream of gaseous-like fluid, comprising: an open-fronthousing having a plurality of orifice areas, and means within saidhousing defining a plurality of cooperating passages communicating withsaid orifice areas; a circulating unit cooperating with said housing,and having a suction inlet and a discharge outlet; means for supportingsaid circulating unit; said housing being swiveled with respect to saidcirculating unit to eiect selective communication of said suction inletand said discharge outlet of said circulating unit with the cooperatingpassages of said housing.

4. Apparatus, as of the type described, for subjecting a person to theaction of a stream of gaseous-like iluid, comprising: an open-ironthousing having a double-wailedconcave member for the reception of a partof a subject to be treated, and cooperatingwith said housing to providea plurality of orice areas and a plurality oi cooperating passagescommunicating with said orirlce areas; a circulating'unit cooperatingwith said housing, and having a suction inlet and a discharge outlet;said housing and said circulating unit being rotatably arranged withrespect to each other to eiect selective communication of said suctioninlet and said dis-l charge outlet of said circulating unit with thecooperating passages of said housing; said housing also comprising meanswhereby gaseous iluid discharged from one passage is entrained in thestream of gaseous iluid entering the other passage and thusrecirculated.

5. Apparatus, as of the type described, for sub- .iecting a person tothe action oi a stream of gaseous-like -iiuid, comprising: an open-ironthousing havinga double-walled concave member for the reception of a partof a subject to be treated, and cooperating with said housing to providea plurality of oriiice areas and a plurality of cooperating passagescommunicating with said orifice areas; a circulating unit cooperatingwith said` housing, and having a suction inlet and a discharge outlet;said housing and said circulating-unit being shiftable relatively toeach other to effect selective communication of said suction inlet andsaid discharge outlet of said circulating unit with the cooperatingpassages of said housing.

6. Apparatus, as of the type described, for subjecting a person to theaction of a. stream of gaseous-like iiuid, comprising: an open-fronthousing having a vplurality of orifice areas, and means within saidhousing defining a. plurality of cooperating passages communicating withsaid orice areas; a circulating unit cooperating with said housing, andhaving a suction inlet and a discharge outlet, said housing and saidcirculating unit being shiftable relatively to each other to effectselective communication of saidsuction inlet and said discharge outletof said circulating unit with the cooperating passages of said housing.

7. A drier comprising: -a dome-shaped housing having an open front endand a closed rear end, the latter being provided with a pair ofopenings; a shell secured within said housing and therewith defining apassage open at the iront of the housing and communicating with one ofthe openings in the rear of said housing; a hood member carried by saidhousing and with the shell defining 1 a second passage opening into saidhood member and communicating with the other opening in the rear of saidhousing; and a circulating unit comprising a motor and fan and enclosingcasing, the latter having a suction inlet and a discharge outlet; andmeans movably connecting said circulatshifting therebetween to eiIectselective registry of the suction inlet and discharge outlet with theopenings in the rear of said housing. l

8. Apparatus, as of the type described, for subjecting a person to theaction of a stream of gaseous-like fluid, comprising: an open-fronthousing having a plurality of oriiice areas, and means Within saidhousing and supported thereby dening a plurality of cooperating passagescommunicating with said oriilce areas, one of said passages intersectingthe other passage; a circulating unit cooperating with said housing, andhaving a suction inlet and a discharge outlet; means for supporting saidcirculating unit; said housing and the means therein being :rotatableVwith respect to said circulating unit to effect selective communicationof said suction inlet and said discharge outlet of said circulating unitwith the cooperating passages of said housing; said housing alsocomprising means whereby gaseous fluid discharged from one passage isentrained in the stream oigaseous uid entering the other passage andthus recirculated.

9. Apparatus, as of the type described, for subjecting a person to theaction of a stream o1' gaseous-like iiuid, comprising: a casingconstruction having or-iilce areas, and including a plurality of nested'elements including an outer casing, a hood member defining a cavity forthe reception of the object to be treated, and an intermediate shellmember, together defining 'a triple-walled construction, said casinghaving a portion spaced from said shell to dene an air passage,communicating with one of said orlce areas, and said shell being spacedfrom said hood member to dene another airpassage, communicating with'another of said oriiice areas; a circulating unit having a. suctioninlet and a discharge outlet; means for supporting said circulatingunit; said triple-walled construction being relatively shiftable withrespect to said circulating unit to effect selective communication ofsaid suction inlet and said discharge outlet of said circulating unitwith said air passages; and. said apparatus comprising means wherebygaseous uid discharged from one passage is entrained in the stream ofgaseous iiuid entering the other passage and thus recirculated.

10. Apparatus, as of the type described, for subjecting a person to theaction of a stream vof gaseous-like iluid, comprising: a casingconstruction having orifice areas, and including a plurality of nestedelements including an outer casing, a hood member denng a' cavity forthe reception of the object to be treated, andan intermediate shellmember, together defining a triple-walled construction, the wallsthereoiI being substantially parallel throughout their coincidinglengths, said casingl having a portion spaced from saidfshell to definean air passage, communicating with one of said orice areas, and saidshell being spaced from said hood member to define another air passage,communicating with another of said orifice areas; and fluid-circulatingmeans communicating with both of said passages, operating to indrawthrough one of lsaid orice areas, an inilowing stream oi fluidinto oneof said passages, and to -expel said iluid from-said other passage-in anoutilowing stream, through said other orice area; said passages andduid-circulating means -being constructed for reversible operation,whereby the direction of ilow of iluid therethrough is reversed.

11., Apparatus, as oi the type described, for sub- 'ing unit and saidhousing to permit relative jecting a. person to the action of a streamot gaseous-like uid, comprising: a casing construction having oriceareas, and including a plurality of nested elements including an outercasing, a hood member dening a cavity for the reception of theobject tobe treated, and an intermediate shell member, together defining a.triple-walled construction, said casing extending substantially beyondthe front ends lof said hood member and shell and having a portionspaced from said shell to detine an air passage, communicating with oneof said orifice areas, and said shell being spaced from said hood memberto deiine another air passage, communicating with another of said criceareas, one of said passages intersecting the other passage; andfluid-circulating means communi-l cating with both of said passages,operating to indraw through one of said orice areas, an lnflowing streamof uid into one of said passages, and to expel said iluid from saidother passage in an outowing stream through said other oriiice area; andsaid apparatus comprising means whereby gaseous iluid discharged fromone passage is entrained in the stream of gaseous fluid entering theother passage and thus recirculated.

i2. Apparatus, as of the type described, for subjecting a pemon to theaction of a stream of 'gaseous-like uid, comprising: a casingconstruction having oriilce areas, and including a plurality oi' nestedelements including an outer casing, a hood member dening a cavity forthe reception oi.' the object to be treated, and an intermediate shellmember, together defining a triple-walled construction, said casinghaving a portion spaced from said shell to dene an air passage,communicating .with one of said orifice areas, and said shell beingspaced from said hood member to define another air passage,communicating with another of said orifice areas, and one of said passages intersecting the other passage; a circulating unit having asuction inlet and a. discharge outlet; means for supporting saidcirculating unit; said triple-walled construction and said circulatingunit being swiveled with respect to each other to enect selectivecommunication of said suction iniet and said discharge outlet of saidcirculating unit with said air passages; and said apparatus comprisingmeans whereby gaseous uid discharged from one passage is entrained inthe stream of gaseous uidentering the other passage and thusrecirculated. y

i3. Apparatus, as of the type described, for subjecting a person to theaction' of a stream of gaseous-like fluid, comprising: a casingconstruction having orifice areas, and including a plurality of nestedelements including an outer casing, a hood member deiining a cavity forthe reception of the #object to bev treated, and an intermediate shellmember, together dening a triple-walledl construction, the walls thereofbeing substantially parallel throughout their coinciding lengths, saidcasing having a portionspaced from said shell to denne an air passage,communicating with one ot said orice areas, and said shell beingspacedfrom said hood member to define another air passage, communicating withanother of said orifice areas; and duid-circulating means communicatingwith both of said passages, operating to indraw through one of saidorifice areas, an inilowing stream of fluid into one of said passages,andto expel said uid from said other e in an outilowing stream, throughsaid other orifice area.

wENDEu. L. mmm.

